CN101547031B - Uplink power control method of HS-SICH channels - Google Patents

Abstract

The invention discloses an uplink power control method of HS-SICH channels. Unsent power control commands are saved on a Node B side at the end of each dispatching cycle; when a dispatching interval between the current dispatching cycle and the last dispatching cycle is smaller than a GAP value, a power control command saved in the last dispatching cycle is sent to a dispatching user in the initial stage of the current dispatching cycle; and based on the sending power of a last HS-SICH subframe of the last dispatching cycle, the dispatching user adjusts the sending power of HS-SICH in the current dispatching cycle according to the received power control command, thereby the closed-loop power control is realized in the initial stage of the dispatching cycle.

Description

The ascending power control method of HS-SICH channel

Technical field

The present invention relates to power control techniques, particularly the ascending power control method of HS-SICH channel.

Background technology

High-speed downlink packet inserts (HSDPA, High Speed Downlink Packet Access) technology and can be applied in the TD-SCDMA system, thereby improves the data throughout and the peak data rate of down link greatly.Particularly, when in base station NodeB, using the HSDPA technology, requiring the specific physical channel of three kinds of HSDPA of physical layer support of NodeB, is respectively HS-SCCH, HS-PDSCH and HS-SICH.

Wherein, HS-SCCH is a downlink sharied signal channel, and NodeB utilizes this channel to send HSDPA signaling, this channel of time division multiplexing between different HSDPA subscriber equipmenies to the HSDPA subscriber equipment.HS-SICH is a uplink shared channel, and the HSDPA subscriber equipment utilizes this channel to send feedback information to NodeB, this channel of time division multiplexing between different HSDPA subscriber equipmenies.RNC disposes HS-SCCH and HS-SICH when carrying out channel configuration in pairs.

In the HSDPA business, the upper strata of NodeB is according to dispatching algorithm, and the one or more HSDPA subscriber equipmenies that are chosen in scheduling in the TTI of 5ms are as dispatched users, and sends data respectively to dispatched users.

When arbitrary dispatched users is sent data, the high level of NodeB is at the scheduling HS-SCCH of HS-SCCH of the corresponding HS-SCCH of dispatched users concentrated selection to be selected as this dispatched users, and the HS-SICH that disposes in pairs with scheduling HS-SCCH is scheduling HS-SICH.NodeB utilizes the HS-SCCH subframe of distributing to send the HSDPA signaling to dispatched users in scheduling HS-SCCH.Dispatched users utilizes the HS-SICH subframe of distributing to send feedback information to NodeB in scheduling HS-SICH.

The last transfer of data of HS-SICH need be carried out uplink power control, and at present, the ascending power control method of HS-SICH comprises:

In the beginning of each dispatching cycle, dispatched users utilizes open-loop power control method to confirm the transmitted power of this subscriber equipment on HS-SICH, and sends signal through HS-SICH to NodeB with this transmitted power;

NodeB confirms reception SNR (the Signal-Noise Ratio: signal to noise ratio) of HS-SICH according to the reception signal on HS-SICH; And confirm the adjustment direction of dispatched users transmitted power according to close-loop power controlling method; For example improve or reduce, and will indicate the power control instruction utilization of this adjustment direction and the HS-SCCH of the paired configuration of this HS-SICH to send to dispatched users; Wherein, The concrete mode of confirming dispatched users transmitted power adjustment direction does; NodeB confirms the target SNR of a HS-SICH, when the last SNR that receives signal of HS-SICH is higher than this target SNR, confirms to reduce the transmitted power of dispatched users; When the last SNR that receives signal of HS-SICH is lower than this target SNR, confirm to improve the transmitted power of dispatched users;

Dispatched users improves or reduces the transmitted power of a step-length according to the power control instruction that NodeB sends.

In above-mentioned Poewr control method; The transmitted power of the HS-SICH that dispatched users is obtained through open-loop power control method, bigger usually, make NodeB hold the reception SNR of the HS-SICH that obtains more much higher than target SNR; And dispatched users is during according to power control instruction adjustment transmitted power; Once only can improve or reduce a step-length, therefore need usually to adjust, just can make the reception SNR of HS-SICH drop to target SNR through transmitted power repeatedly.In scheduling time before not dropping to target SNR, dispatched users is sent the HS-SICH signal with higher transmit power to NodeB all the time, thereby causes other subscriber equipmenies are produced stronger interference signal.

Consider the defective of above-mentioned Poewr control method; Recently; Following power control mode is proposed: in the TD-SCDMA standard when the scheduling interval between two adjacent dispatching cycles is not less than preset GAP value (is unit with the subframe); Dispatched users still utilizes open-loop power control method to confirm the transmitted power of HS-SICH in the incipient stage of new dispatching cycle; When scheduling interval during,,, carried out the power adjustment according to transmission power level and the power control instruction in the last dispatching cycle in the incipient stage of new dispatching cycle less than the GAP value.Thereby avoid in the aforementioned power control method the stronger interference signal that dispatched users produces other users.But should not provide complete technical scheme according to the concrete realization of the power control mode of GAP value.

Summary of the invention

In view of this, the present invention provides a kind of ascending power control method of HS-SICH channel, can realize above-mentioned power control mode based on the GAP value, thereby avoids dispatched users that other users are produced stronger interference signal.

For realizing above-mentioned purpose, the present invention adopts following technical scheme:

A kind of ascending power control method of HS-SICH channel, for a dispatched users,

After last HS-SCCH subframe of current dispatching cycle is sent, to the last sub-frame of last HS-SICH subframe of current dispatching cycle and the next one first HS-SCCH subframe dispatching cycle till the forward subframe; NodeB utilizes close-loop power controlling method, confirms and the preservation power control instruction according to the HS-SICH subframe signal that receives; And,

If the scheduling interval between current dispatching cycle and dispatching cycle on it is less than the GAP value of presetting; Then in the current dispatching cycle; Before first HS-SICH subframe signal was not determined power control instruction in current dispatching cycle according to said dispatched users, NodeB sent to dispatched users with power control instruction of confirming dispatching cycle and preserving on the said dispatched users at NodeB.

Preferably, said NodeB sends to dispatched users with the power control instruction of confirming dispatching cycle on the dispatched users and preserve and comprises:

If the subframe numbers of first HS-SCCH subframe of current dispatching cycle is greater than the subframe numbers of a last dispatching cycle of last HS-SICH subframe, then last uplink power control of the last dispatching cycle generation that will preserve of NodeB is instructed and is sent to dispatched users;

If the subframe numbers of first HS-SCCH subframe of current dispatching cycle is not more than the subframe numbers of last HS-SICH subframe of a dispatching cycle, then NodeB is with the D before first HS-SCCH subframe of current dispatching cycle _ULThe instruction of uplink power control that sub-frame produced is carried in first HS-SCCH subframe of current dispatching cycle and sends to dispatched users; From second HS-SCCH subframe of current dispatching cycle begin, to the HS-SCCH subframe of not determining all current dispatching cycle before the power control instruction according to said dispatched users first HS-SICH subframe signal current dispatching cycle; For arbitrary subframe numbers is the subframe of SFN, if subframe numbers satisfies (SFN-D _UL)＞SFN_SICH_last, then NodeB is that the subframe of SFN is handed down to dispatched users with the uplink power control instruction of preserving through said subframe numbers, if subframe numbers satisfies (SFN-D _UL)＜=SFN_SICH_last, then NodeB is SFN-D with subframe numbers _ULThe uplink power control instruction that produces of subframe be carried in the subframe that subframe numbers is SFN and send to dispatched users.

Preferably; At said NodeB after the power control instruction of a dispatching cycle sends to dispatched users successively on said dispatched users; Said NodeB is not before first HS-SICH subframe signal is determined power control instruction in current dispatching cycle according to said dispatched users, and this method further comprises: NodeB alternately will indicate the power control instruction that improves and reduce the HS-SICH transmitted power to send to dispatched users.

Preferably; This method further comprises: if current dispatching cycle be first dispatching cycle or current dispatching cycle and on it scheduling interval between dispatching cycle be not less than preset GAP value; Then to current dispatching cycle: before first HS-SICH subframe signal was not determined power control instruction in current dispatching cycle according to said dispatched users, NodeB carried preset reactance capacity control command in the HS-SCCH subframe that at every turn issues at NodeB.

Preferably, said reactance capacity control command is for alternately indicating the power control instruction that improves and reduce the HS-SICH transmitted power.

Preferably; For current dispatching cycle; From NodeB according to said dispatched users first HS-SICH subframe signal current dispatching cycle determine power control instruction, to last HS-SCCH subframe of current dispatching cycle; NodeB utilizes close-loop power controlling method, confirms power control instruction according to the HS-SICH signal that receives, and is handed down to dispatched users through the HS-SCCH subframe.

Preferably; If current dispatching cycle be first dispatching cycle or current dispatching cycle and on it scheduling interval between dispatching cycle be not less than preset GAP value; Then begin to receive the HS-SICH signal of dispatched users last HS-SCCH subframe from NodeB to current dispatching cycle in current dispatching cycle; First HS-SICH signal that NodeB receives with current dispatching cycle is the basis, carries out the said operation that utilizes close-loop power controlling method, confirms power control instruction;

If the scheduling interval between current dispatching cycle and dispatching cycle on it is less than the GAP value of presetting; Then current dispatching cycle begins to receive the HS-SICH signal of dispatched users last HS-SCCH subframe to current dispatching cycle from NodeB; The HS-SICH signal that receive a dispatching cycle more than the NodeB is carried out the said operation that utilizes close-loop power controlling method, confirms power control instruction for the basis.

Preferably, when being separated by at least one subframe between last HS-SICH subframe of said current dispatching cycle and first HS-SCCH subframe of next dispatching cycle, on said subframe of being separated by, do not carry out the power control operation for said dispatched users.

Preferably, when preserving power control instruction, the power back-off that this power control instruction is corresponding is set to 0.

A kind of ascending power control method of HS-SICH channel is used for the transmitted power that dispatched users is confirmed self HS-SICH, and this method comprises:

If current dispatching cycle be first dispatching cycle or current dispatching cycle and on it scheduling interval between dispatching cycle be not less than preset GAP value; Then in current dispatching cycle; Dispatched users do not extract NodeB in the current dispatching cycle utilize close-loop power controlling method confirm and the power control instruction that issues before, dispatched users utilizes open-loop power control method to confirm the transmitted power of each HS-SICH subframe;

If the scheduling interval between current dispatching cycle and dispatching cycle on it is less than the GAP value of presetting; Then in the current dispatching cycle; Dispatched users do not extract NodeB in the current dispatching cycle utilize close-loop power controlling method confirm and the power control instruction that issues before; Dispatched users above one dispatching cycle the HS-SICH subframe transmitted power be basic; According to the HS-SCCH of current dispatching cycle carry last one dispatching cycle NodeB power control instruction, carry out the transmitted power adjustment of HS-SICH.

Preferably, this method further comprises:

To current dispatching cycle; Till said dispatched users begins to receive power control instruction that NodeB utilizes close-loop power controlling method and confirm and issue, extracts subframe forward last HS-SICH subframe of last HS-SCCH subframe is carried in the current dispatching cycle power control instruction and current dispatching cycle to dispatched users; Dispatched users is carried out the transmitted power adjustment of HS-SICH according to the power control instruction that NodeB utilizes close-loop power controlling method to confirm and issue.

Preferably, when dispatched users is extracted the shared number of sub frames of power control instruction less than the corresponding number of sub frames of the timing difference between HS-SICH and HS-SCCH,

If the subframe numbers of last HS_SICH subframe of current dispatching cycle is less than or equal to the subframe numbers of the power control instruction that first HS_SCCH subframe is carried in next dispatching cycle that dispatched users extracts current dispatching cycle; Perhaps; If the subframe numbers of last HS_SICH subframe of current dispatching cycle extracts subframe numbers and current dispatching cycle and the scheduling interval between next dispatching cycle of the power control instruction that first HS_SCCH subframe is carried in next dispatching cycle of current dispatching cycle and is not less than preset GAP value greater than dispatched users; Then from dispatched users extract last HS-SCCH subframe is carried in the current dispatching cycle power control instruction, till last HS-SICH subframe of current dispatching cycle, dispatched users is with the determined transmitted power of power control instruction of carrying according to last HS-SCCH subframe in the current dispatching cycle transmitted power as HS-SICH;

When dispatched users is extracted the shared number of sub frames of power control instruction less than the corresponding number of sub frames of the timing difference between HS-SICH and HS-SCCH,

If the subframe numbers of last HS_SICH subframe of current dispatching cycle extracts subframe numbers and current dispatching cycle and the scheduling interval between next dispatching cycle of the power control instruction that first HS_SCCH subframe is carried in next dispatching cycle of current dispatching cycle less than preset GAP value greater than dispatched users; Then from dispatched users extract last HS-SCCH subframe is carried in the current dispatching cycle power control instruction, till the previous subframe that is extracted out to first power control instruction of said next dispatching cycle, dispatched users is with the determined transmitted power of power control instruction of carrying according to last HS-SCCH subframe in the current dispatching cycle transmitted power as HS-SICH.

Preferably, dispatched users is according to power control instruction, and the transmitted power of carrying out HS-SICH is adjusted into:

When the power control instruction that receives is when improving transmitted power, with preset step-length of transmitted power raising of HS-SICH; When the power control instruction that receives is when reducing transmitted power, with preset step-length of transmitted power reduction of HS-SICH.

Visible by technique scheme; Among the present invention; In the NodeB side; After last HS-SCCH subframe of current dispatching cycle is sent, to last HS-SICH subframe of current dispatching cycle and next dispatching cycle first HS-SCCH subframe a last sub-frame till the forward subframe, NodeB utilizes close-loop power controlling method, the definite and preservation power control instruction according to the HS-SICH signal that receives; And; If the scheduling interval between current dispatching cycle and dispatching cycle on it is less than the GAP value of presetting; Then in the current dispatching cycle; At NodeB before first HS-SICH subframe signal is not determined power control instruction in current dispatching cycle according to said dispatched users; NodeB sends to dispatched users successively with power control instruction of preserving dispatching cycle on the said dispatched users, alternately will indicate the power control instruction that improves and reduce the HS-SICH transmitted power to send to dispatched users again.Like this; When scheduling interval during less than the GAP value; In the incipient stage of new dispatching cycle, NodeB can be handed down to dispatched users with the power control instruction that preserve a last dispatching cycle, thereby created conditions for just dispatched users being proceeded closed power control in the incipient stage new dispatching cycle.

Correspondingly; In the dispatched users side; If current dispatching cycle be first dispatching cycle or current dispatching cycle and on it scheduling interval between dispatching cycle be not less than preset GAP value; Then in current dispatching cycle, dispatched users do not extract NodeB in the current dispatching cycle utilize close-loop power controlling method confirm and the power control instruction that issues before, dispatched users utilizes open-loop power control method to confirm the transmitted power of each HS-SICH subframe; If the scheduling interval between current dispatching cycle and dispatching cycle on it is less than the GAP value of presetting; Then in the current dispatching cycle; Dispatched users do not extract NodeB in the current dispatching cycle utilize close-loop power controlling method confirm and the power control instruction that issues before; The transmitted power of a dispatched users above dispatching cycle of last HS-SICH subframe is the basis, according to the power control instruction of last dispatching cycle NodeB preservation, carries out the transmitted power adjustment of HS-SICH.Like this; When scheduling interval during less than the GAP value; In the incipient stage of new dispatching cycle, dispatched users can receive the power control instruction of a last dispatching cycle of NodeB transmission, and the transmitted power of last HS-SICH of an above dispatching cycle is the basis; Power control instruction according to receiving carries out the adjustment of transmitted power, thereby realizes the closed power control of new incipient stage dispatching cycle.

It is thus clear that the present invention has realized the power control mode based on the GAP value, thereby avoid dispatched users that other users are produced stronger interference signal.

Description of drawings

Fig. 1 is two continuous sketch mapes dispatching cycle that distribute for dispatched users k.

Embodiment

For making the object of the invention, technological means and advantage clearer, the present invention is explained further details below in conjunction with accompanying drawing.

Poewr control method of the present invention is divided into NodeB side and dispatched users side.

Wherein, In the NodeB side; After last HS-SCCH subframe of current dispatching cycle is sent, to the last sub-frame of last HS-SICH subframe of current dispatching cycle and the next one first HS-SCCH subframe dispatching cycle till the forward subframe; NodeB utilizes close-loop power controlling method, confirms and the preservation power control instruction according to the HS-SICH signal that receives; And; If the scheduling interval between current dispatching cycle and dispatching cycle on it is less than the GAP value of presetting; Then in the current dispatching cycle; At NodeB before first HS-SICH subframe signal is not determined power control instruction in current dispatching cycle according to said dispatched users; NodeB sends to dispatched users successively with power control instruction of preserving dispatching cycle on the said dispatched users, alternately will indicate the power control instruction that improves and reduce the HS-SICH transmitted power to send to dispatched users again.

Correspondingly; In the dispatched users side; If current dispatching cycle be first dispatching cycle or current dispatching cycle and on it scheduling interval between dispatching cycle be not less than preset GAP value; Then in current dispatching cycle, dispatched users do not extract NodeB in the current dispatching cycle utilize close-loop power controlling method confirm and the power control instruction that issues before, dispatched users utilizes open-loop power control method to confirm the transmitted power of each HS-SICH subframe; If the scheduling interval between current dispatching cycle and dispatching cycle on it is less than the GAP value of presetting; Then in the current dispatching cycle; Dispatched users do not extract NodeB in the current dispatching cycle utilize close-loop power controlling method confirm and the power control instruction that issues before; Dispatched users above one dispatching cycle the HS-SICH subframe transmitted power be the basis, according to last one power control instruction that dispatching cycle, NodeB preserved, carry out the transmitted power of HS-SICH and adjust.

As above, be to overview of the present invention, through specific embodiment embodiment of the present invention is described below.

HS-SICH can be time-multiplexed as previously mentioned, promptly can distribute to different user equipment in different dispatching cycles.And when certain dispatching cycle, HS-SICH distributed to a subscriber equipment after, other subscriber equipmenies just can not utilize HS-SICH to transmit data in this dispatching cycle.

In ascending power control method of the present invention; NodeB is used to save as current subframe and ensuing D '-1 sub-frame and generates the required correlated variables of power control instruction for the uplink data channels of each dispatched users is provided with a uplink power control (ULPC) memory block.Wherein, the loop delay of D ' expression Poewr control method.The correlated variables of specifically in memory block, preserving comprises:

The recursive average of the SIR of the dispatched users that SIR, current subframe and the last subframe integrated detection of the dispatched users of 1) confirming after current subframe integrated the detection confirmed later on;

The coefficient correlation of the interchannel that channel that the current subframe (frame number is n) that is used to the 2) variable relevant with received power, transmitted power and path loss, these variablees to calculate is experienced and preceding the D ' sub-frame (frame number is n-D ') are experienced, here, D '=D _UL+ D _DLThe time delay of expression closed power control loop, D _ULThe time delay that expression NodeB adnation becomes and transmission power control is instructed, D _DLThe time delay of expression UE side extraction and responding power control command;

3) ULPC of preceding D ' sub-frame instruction compensation variable PC _UL ^*(n-D), PC _UL ^*(n-D+1) ..., PC _UL ^*(n-1), wherein, PC _UL ^*(n) the ULPC instruction offset of expression n sub-frame, if the power control instruction of n sub-frame is " UP ", corresponding compensation value then ${\mathrm{PC}}_{\mathrm{UL}}^{*}\left(n\right)=1,$ If the power control instruction of n sub-frame is " DOWN ", then the corresponding compensation value ${\mathrm{PC}}_{\mathrm{UL}}^{*}\left(n\right)=-1;$

4) power control step-size and target SIR;

5) current subframe power control instruction.

6) the power control instruction ULPCComMemory of pre-stored.

In above-mentioned 6 types of correlated variabless, preceding 5 types of correlated variabless that both existed for existing Poewr control method are used to generate power control instruction, and detailed directions just repeats no more hereinafter; Last type is initiate variable in the scheme of the present invention, will be described in detail hereinafter.

In embodiments of the present invention, be assumed to certain dispatched users k allocation schedule cycle, Fig. 1 promptly is two continuous sketch mapes dispatching cycle that distribute for dispatched users k.As shown in Figure 1, SFN_SCCH_first representes the subframe numbers of dispatched users k in first HS-SCCH subframe of current dispatching cycle; SFN_SCCH_last representes the subframe numbers of dispatched users k in last HS-SCCH subframe of current dispatching cycle, and subframe SFN_SCCH_last+1 no longer is a subframe of distributing to user k; SFN_SICH_first representes the subframe numbers of dispatched users k in first HS-SICH subframe of current dispatching cycle; SFN_SICH_last dispatched users k is at the subframe numbers of last HS-SICH subframe of current dispatching cycle, and subframe SFN_SICH_last+1 no longer is a subframe of distributing to user k; SFN_SCCH_first_1 representes to carry the sub-frame number of HS-SCCH of current dispatching cycle of the power control instruction of HS-SICH, and this power control instruction that carries is that NodeB is according to the determined power control instruction of subframe SFN_SICH_first that receives; SFN_SICH_last_1 representes the sub-frame number of HS-SICH in the current dispatching cycle, and NodeB carries in subframe SFN_SCCH_last according to the determined power control instruction of this subframe.

Visible by Fig. 1, in first dispatching cycle, be the HS-SCCH channel resource of dispatching for user k from subframe SFN_SCCH_fist to subframe SFN_SCCH_last; From subframe SFN_SICH_first to subframe SFN_SICH_last be for user k scheduling with the corresponding HS-SICH channel resource of HS-SCCH.In second dispatching cycle, be the HS-SCCH channel resource of dispatching once more for user k from subframe New_SFN_SCCH_first to subframe New_SFN_SCCH_last; From subframe New_SFN_SICH_first to subframe New_SFN_SICH_last be dispatch once more for user k with the corresponding HS-SICH channel resource of HS-SCCH.Wherein, HS-SICH and HS-SCCH are configurations in pairs, and HS-SCCH always shifts to an earlier date than HS-SICH, if the timing difference of HS-SCCH and HS-SICH is defined as the T sub-frame, then has:

SFN_SICH_first-SFN_SCCH_first＝T

SFN_SICH_last-SFN_SCCH_last＝T

New_SFN_SICH_first-New_SFN_SCCH_first＝T

New_SFN_SICH_last-New_SFN_SCCH_last＝T

Utilize D _ULExpression NodeB then had according to the time of delay that the HS-SICH signal that receives produces and transmission power control is instructed:

D _UL＝SFN_SCCH_first_1-SFN_SICH_first

D _UL＝SFN_SCCH_last-SFN_SICH_last_1

In Fig. 1 of present embodiment, D _UL=1.

Ascending power control method in the present embodiment comprises the content of two aspects: on the one hand be the ascending power control method that carries out in the NodeB side; Be the ascending power control method that carries out in the dispatched users side on the other hand.

At first, introduce the embodiment of the ascending power control method of NodeB side.NodeB is all identical to the operation of all dispatched users, with two dispatching cycles that are dispatched users k distributes shown in Figure 1 be that example describes.

As previously mentioned, when the scheduling interval between two adjacent dispatching cycles was not less than preset GAP value (is unit with the subframe), dispatched users still utilized open-loop power control method to confirm the transmitted power of HS-SICH in the incipient stage of new dispatching cycle; When scheduling interval during,,, carried out the power adjustment according to transmission power level and the power control instruction in the last dispatching cycle in the incipient stage of new dispatching cycle less than the GAP value.In view of the above, among the present invention, will be divided into two types dispatching cycle according to the characteristic of current dispatching cycle, adopt the different power control operation respectively at the NodeB lateral root.Particularly,

If current dispatching cycle be first dispatching cycle or the current dispatching cycle of dispatched users and on it scheduling interval between dispatching cycle be not less than preset GAP value; Current dispatching cycle is first kind dispatching cycle so, the Poewr control method of NodeB side current dispatching cycle is divided into following four-stage: stage A, stage B, stage C and stage D; If current dispatching cycle and on it scheduling interval between dispatching cycle less than preset GAP value; Current dispatching cycle is second type of dispatching cycle so, the Poewr control method of current dispatching cycle is divided into following four-stage: stage E, stage F, stage C and stage D.Detail with regard to the concrete operations in above-mentioned two types of dispatching cycles below.

For first kind dispatching cycle:

Stage A is: NodeB does not determine the stage before the power control instruction according to said dispatched users first HS-SICH subframe signal in current dispatching cycle in the current dispatching cycle, specifically promptly from subframe SFN_SCCH_frst to subframe SFN_SICH_first+D _UL-1, be illustrated in figure 1 as subframe SFN_SCCH_first to subframe SFN_SICH_first.In this stage, NodeB carries preset reactance capacity control command in the HS-SCCH subframe that at every turn issues, and this reactance capacity control command can be " the improving (up) " of alternately sending and the power control instruction of " reduction (down) ".Dispatched users does not respond the reactance capacity control command in this stage.

Stage B is: from NodeB according to dispatched users first HS-SICH subframe signal current dispatching cycle determine power control instruction, till last HS-SCCH subframe of current dispatching cycle, specifically promptly from subframe SFN_SICH_first+D _ULTo subframe SFN_SCCH_last, be illustrated in figure 1 as subframe SFN_SICH_first+1 to subframe SFN_SCCH_last.In this stage, NodeB can receive the HS-SICH signal that UE sends in the current dispatching cycle, and can confirm power control instruction according to this signal, for example, can receive subframe SFN_SICH_first, and can confirm power control instruction according to this subframe.The concrete operations in this stage are: the subframe numbers according to the current dispatching cycle that receives is n-D _ULHS-SICH subframe signal, utilize close-loop power controlling method to confirm the power control instruction of HS-SICH, and be that the HS-SCCH subframe of n is carried this power control instruction and sent to dispatched users through subframe numbers.Wherein, SFN_SICH_first+D _UL≤n≤SFN_SCCH_last.Dispatched users is adjusted the transmitted power of HS-SICH after receiving the power control instruction in this stage.In this stage; Utilize the transmitted power of first HS-SICH that dispatched users is uploaded in the current dispatching cycle to be the basis; The applying closed loop Poewr control method, particularly, the transmitted power of this first HS-SICH is that dispatched users is confirmed according to open-loop power control method.

Stage C is: after last HS-SCCH subframe of current dispatching cycle is sent, to the last sub-frame of last HS-SICH subframe of current dispatching cycle and the next one first HS-SCCH subframe dispatching cycle till the forward subframe; Promptly from subframe SFN_SCCH_last+1 to subframe MIN{SFN_SICH_last, New_SFN_SCCH_first-1}.The division in this stage is to consider before the subframe SFN_SICH_last of current dispatching cycle, to begin next dispatching cycle, and then this stage should begin preceding end in next dispatching cycle.In this stage,, and can confirm power control instruction according to this subframe signal though NodeB still can receive the HS-SICH subframe signal of current dispatching cycle; But because the HS-SCCH in this stage has not belonged to user k; Therefore can't the power control instruction of confirming be sent to UE, in Poewr control method in the past, this type is in the period; NodeB abandons the HS-SICH subframe signal of reception, no longer produces power control instruction.But in this application; The concrete operations in this stage are: continue to confirm power control instruction according to the current HS-SICH subframe signal that receives; And the power control instruction of confirming is kept in the current subframe power control instruction memory cell in the ULPC memory block of aforesaid dispatched users; Because this power control instruction can't send to UE through HS-SCCH; Therefore the ULPC instruction offset that this power control instruction is corresponding is set to 0, and it is no longer played a role in generating follow-up D '-1 power control instruction.Simultaneously, this order is replaced by newly-generated power control instruction in next subframe at last.Wherein, the loop delay of D ' expression ascending power control method, D '=D _UL+ D _DL, D _DLFor dispatched users receives power control instruction that NodeB issues to parsing this instruction and responding time of delay of this instruction.

In the practical implementation process of scheme, stage D possibly exist, and also possibly not exist.If when being separated by at least one subframe between last HS-SICH subframe of current dispatching cycle and first HS-SCCH subframe of next dispatching cycle; New_SFN_SCCH_first-SFN_SICH_last＞=2 o'clock just; There is stage D, otherwise do not have stage D.Particularly; Stage D is: the stage of being separated by between first HS-SCCH subframe of last HS-SICH subframe of current dispatching cycle and next dispatching cycle; Promptly from subframe SFN_SICH_last+1 to subframe New_SFN_SCCH_first-1; Subframe SFN_SICH_last+1 as shown in Figure 1, just subframe New_SFN_SCCH_first-1.In this stage, NodeB no longer carries out the power control operation.

So far, for first kind dispatching cycle, the power control operation that the NodeB side is carried out in the four-stage that possibly exist by the agency of finishes.

For second type of dispatching cycle:

ULPCComMemory in the ULPC of dispatched users k memory block preserves " up " in advance.

In second dispatching cycle of Fig. 1, provided the sketch map of the ascending power control method of HS-SICH channel in second type of dispatching cycle.Shown in second dispatching cycle among Fig. 1; New_SFN_SCCH_first-SFN_SCCH_last-1＜ULPC_GAP utilizes close-loop power controlling method to confirm the transmitted power of first HS-SICH subframe New_SFN_SICH_first in second dispatching cycle of this dispatched users to dispatched users k.Next, the ascending power control method in this dispatching cycle is introduced stage by stage.

The concrete division of stage E is identical with the dividing mode of aforementioned stages A, and promptly NodeB does not determine the power control instruction stage before according to dispatched users first HS-SICH subframe signal in current dispatching cycle in the current dispatching cycle.In this stage; For subframe New_SFN_SCCH_first; NodeB sent to dispatched users k with the uplink power control instruction that the stage C in the last dispatching cycle produces, and dispatched users k is according to the transmitted power of this uplink power control instruction adjustment HS-SICH.

As shown in Figure 1; If New_SFN_SCCH_first＞SFN_SICH_last, NodeB will be carried at according to the determined uplink power control instruction of a last dispatching cycle of last HS-SICH subframe SFN_SICH_last and send to dispatched users k among the subframe New_SFN_SCCH_first.In this stage; After subframe New_SFN_SCCH_first; The power control instruction that NodeB will preserve in ULPCComMemory in advance is handed down to dispatched users through the HS-SCCH subframe, and after transmission, the power control instruction of preserving among the ULPCComMemory is overturn; Just " up " made into " down ", or " down " made into " up ".Thereby when the power control instruction of no newly-generated previous dispatching cycle can send, the power control instruction that can alternately indication be improved and reduce the HS-SICH transmitted power send to dispatched users.

If New_SFN_SCCH_first＜=SFN_SICH_last, NodeB is with subframe New_SFN_SCCH_first-D _ULThe uplink power control instruction that produces is carried at and sends to user k in the New_SFN_SCCH_first subframe.In this stage, for any HS-SCCH subframe behind the New_SFN_SCCH_first, if the subframe numbers of this subframe SFN satisfies (SFN-D _UL)＜=SFN_SICH_last, then NodeB is with subframe (SFN-D _UL) the uplink power control instruction that produces is carried among this subframe SFN and sends to dispatched users k; If the subframe numbers of this subframe SFN satisfies (SFN-D _UL)＞SFN_SICH_last, then the power control instruction that will in ULPCComMemory, preserve in advance of NodeB is handed down to dispatched users through the HS-SCCH subframe, and after transmission, the power control instruction of preserving among the ULPCComMemory is overturn.Just " up " made into " down ", or " down " made into " up ".

Here need to prove that in the present embodiment, that in ULPCComMemory, preserve in advance is " up "; Therefore when the order of no previous dispatching cycle can be sent, when transmission open uplink power control is alternately instructed, be to send out " up " earlier to send out " down " again; This is preferred embodiment a kind of, because before not receiving the HS-SICH signal, NodeB can't judge the relation between the target SNR that transmitted power and the closed power mode of current HS-SICH confirm exactly; Putting before this; If reduce the transmitted power of HS-SICH earlier, the transmitted power of HS-SICH is reduced, thereby possibly cause reception SNR to be lower than target SNR; Thereby cause NodeB can't correctly receive and extract the HS-SICH signal, therefore preferably send out " up " earlier and send out " down " again.Certainly; Also be not limited only to this kind mode and carry out alternately sending of power control instruction; Also can in ULPCComMemory, preserve " down " in advance; Therefore when the order of no previous dispatching cycle can be sent, when transmission open uplink power control is alternately instructed, be to send out " down " earlier to send out " up " again.

The concrete division of stage F is identical with the dividing mode of stage B, promptly from NodeB according to dispatched users first HS-SICH subframe signal current dispatching cycle determine power control instruction, till last HS-SCCH subframe of current dispatching cycle.In this stage, similar with stage B, NodeB is n-D according to the subframe numbers of the current dispatching cycle that receives _ULHS-SICH subframe signal, utilize close-loop power controlling method to confirm the power control instruction of HS-SICH, and be that the HS-SCCH subframe of n is carried this power control instruction and sent to dispatched users through subframe numbers.Wherein, New_SFN_SICH_first+D _UL≤n≤New_SFN_SCCH_last.Dispatched users is adjusted the transmitted power of HS-SICH after receiving the power control instruction in this stage.The difference of this stage and stage B is, is not from beginning to carry out again uplink power control at subframe New_SFN_SCCH_first, controlling but begin directly to get into closed power from subframe New_SFN_SCCH_first in this stage F.Subframe New_SFN_SCCH_first according to above one dispatching cycle this user the reception data of historical data and current subframe of ULPC be the basis, in this stage F, continue to generate the power control command of present frame.That is to say, inherited the transmitted power of a last dispatching cycle and carried out closed power control.

After stage F, the next operation of execution phase C and stage D (if having stage D), the concrete stage C and the concrete division of stage D and the front that operates in the stage were introduced, and just repeated no more here.

So far, for second type of dispatching cycle, the power control operation that the NodeB side is carried out in the four-stage that possibly exist by the agency of finishes.

As stated, be the practical implementation of the ascending power control method of NodeB side among the present invention.Next, introduce the embodiment of the ascending power control method of dispatched users side.The ascending power control method that carries out in each dispatched users is all identical, and is corresponding with the ascending power control method of aforementioned NodeB side, is that example describes with dispatched users k below.

Similar with the NodeB side, current dispatching cycle is divided into two types, sorting technique is identical, and for dissimilar dispatching cycles, dispatched users adopts the different power control operation respectively.Particularly, in the dispatched users side, the Poewr control method of first kind dispatching cycle is divided into following three phases: stage a, stage b and stage c are divided into following three phases with the Poewr control method of second type of dispatching cycle: stage d, stage b and stage c.

For first kind dispatching cycle:

Stage a is: dispatched users does not extract the preceding stage of power control instruction that NodeB utilizes close-loop power controlling method to confirm and issue in the current dispatching cycle; Promptly from subframe SFN_SICH_frst to subframe SFN_SICH_first+D '-1, subframe SFN_SICH_frst as shown in Figure 1 is to subframe SFN_SICH_first+2.In this stage, dispatched users utilizes open-loop power control method to confirm the transmitted power of each HS-SICH subframe, and sends the HS-SICH subframe with this transmitted power to NodeB.

Stage b is: till dispatched users begins to receive power control instruction that NodeB utilizes close-loop power controlling method and confirm and issue, extracts subframe forward last HS-SICH subframe of last HS-SCCH subframe is carried in the current dispatching cycle power control instruction and current dispatching cycle to dispatched users, promptly from subframe SFN_SICH_first+D ' to subframe SFN_SCCH_last+min{D _DL, T}, wherein, T is the timing difference of HS-SCCH and HS-SICH.The division in this stage is to consider that the power control instruction that last HS-SCCH of current dispatching cycle carries possibly extract; And last HS-SICH subframe is not sent as yet, then this stage should be in the end the power control instruction that carries of HS-SCCH finish when being extracted out.In this stage, dispatched users is carried out the transmitted power adjustment of HS-SICH according to the power control instruction that the HS-SCCH that extracts carries.Particularly, if power control instruction is when improving transmitted power, then the transmitted power with HS-SICH improves a preset step-length; When the power control instruction that receives is when reducing transmitted power, with preset step-length of transmitted power reduction of HS-SICH.

In the practical implementation process of scheme, stage c possibly exist, and also possibly not exist.If D _DLDuring less than T, there is stage c, otherwise do not have stage c.And stage c has two kinds of situation.

Situation 1:SFN_SICH_last＜=New_SFN_SCCH_first+D _DL-1.Particularly, stage c is: from dispatched users extract last HS-SCCH subframe is carried in the current dispatching cycle power control instruction, till last HS-SICH subframe of current dispatching cycle, promptly from subframe SFN_SCCH_last+D _DL+ 1 to subframe SFN_SICH_last.In this stage; The determined transmitted power of power control instruction that dispatched users is carried according to last HS-SCCH subframe in the current dispatching cycle is as the transmitted power of HS-SICH, just adopt with stage b in the identical transmitted power of last HS-SICH subframe.

Situation 2:SFN_SICH_last＞New_SFN_SCCH_first+D _DL-1.If situation 2 times; Scheduling interval between current dispatching cycle and new dispatching cycle is less than preset GAP value; Stage c is: from dispatched users extract last HS-SCCH subframe is carried in the current dispatching cycle power control instruction, till the previous subframe that is extracted out to first power control instruction of new dispatching cycle, promptly from subframe SFN_SCCH_last+D _DL+ 1 to subframe New_SFN_SCCH_first+D _DL-1.In this stage; The determined transmitted power of power control instruction that dispatched users is carried according to last HS-SCCH subframe in the current dispatching cycle is as the transmitted power of HS-SICH, just adopt with stage b in the identical transmitted power of last HS-SICH subframe.

If situation 2 times, the scheduling interval between current dispatching cycle and new dispatching cycle is not less than preset GAP value, stage c just with situation 1 under stage c have identical division and function.

So far, for first kind dispatching cycle, the power control operation that the dispatched users side is carried out in the three phases that possibly exist by the agency of finishes.

For second type of dispatching cycle:

The concrete division of stage d is identical with the dividing mode of stage a, and promptly dispatched users does not extract the preceding stage of power control instruction that NodeB utilizes close-loop power controlling method to confirm and issue in the current dispatching cycle.In this stage, the transmitted power of the HS-SICH subframe of a dispatching cycle is the basis more than the dispatched users, according to the power control instruction of the last dispatching cycle that this dispatching cycle, HS-SCCH carried, carries out the transmitted power adjustment of HS-SICH.Particularly, as previously mentioned, in second type of dispatching cycle; NodeB is at the stage in this cycle d power control instruction of a dispatching cycle on dispatched users is sent, if possible, and on having sent behind the power control instruction of a dispatching cycle; Continue to send the power control instruction of " up " and " down "; Then dispatched users is according to the above-mentioned power control instruction that receives, more than in a dispatching cycle transmitted power of last HS-SICH subframe be basic, proceed the adjustment of transmitted power.Identical in concrete adjustment mode and the stage b, just repeat no more here.Like this,, just can inherit a last dispatching cycle, carry out closed power control since dispatching cycle second type of dispatching cycle.

Here need explanation, in stage d, dispatched users k carried out in the process of transmitted power adjustment according to the power control instruction of a last dispatching cycle, if D _DL＜T and SFN_SICH_last＞New_SFN_SCCH_first+D _DLUnder-1 the situation; Promptly; Under the situation that the power control instruction that first HS-SCCH subframe of current new dispatching cycle is carried just was extracted and responded before last HS-SICH subframe of a last dispatching cycle finishes, from subframe New_SFN_SCCH_first+D _DLTo subframe SFN_SICH_last, dispatched users k will utilize its transmitted power of power control instruction adjustment of the last one-period that carries current new dispatching cycle; After this, more than a dispatching cycle last HS-SICH subframe SFN_SICH_last transmitted power be the basis, carry out transmitted power adjustment.Except that above-mentioned situation; Be that the power control instruction that first HS-SCCH subframe of current new dispatching cycle is carried was not extracted before last HS-SICH subframe of a last dispatching cycle finishes; More than then in stage d a dispatching cycle last HS-SICH subframe SFN_SICH_last transmitted power be the basis, carry out transmitted power adjustment.

Behind stage d, next (if there is the operation of stage c), concrete stage b and the concrete division of stage c and the front that operates in the stage were introduced, and just repeated no more here for execution phase b and stage c.

So far, for second type of dispatching cycle, the power control operation that the dispatched users side is carried out in the three phases that possibly exist by the agency of finishes.

As stated, be the practical implementation of the ascending power control method of dispatched users side among the present invention.

Ascending power control method according to above-mentioned NodeB side and dispatched users side can be found out; Through cooperatively interacting of NodeB side and dispatched users side; In the first kind in dispatching cycle, can realize that the incipient stage utilizes open Loop Power control to carry out confirming of HS-SICH transmitted power; In second type of dispatching cycle, can realize that the incipient stage utilizes closed power control to carry out confirming of HS-SICH transmitted power.Just, complete, attainable technical scheme are provided, thereby have avoided dispatched users the stronger interference signal of other users' generations to the power control mode that carries out based on GAP value that proposes in the TD-SCDMA standard.

More than being merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (13)

1. the ascending power control method of a HS-SICH channel is characterized in that, this method is for a dispatched users,

After last HS-SCCH subframe of current dispatching cycle is sent, to the last sub-frame of last HS-SICH subframe of current dispatching cycle and the next one first HS-SCCH subframe dispatching cycle till the forward subframe; NodeB utilizes close-loop power controlling method, confirms and the preservation power control instruction according to the HS-SICH subframe signal that receives; And,

If the scheduling interval between current dispatching cycle and dispatching cycle on it is less than the GAP value of presetting; Then in the current dispatching cycle; Before first HS-SICH subframe signal was not determined power control instruction in current dispatching cycle according to said dispatched users, NodeB sent to dispatched users with power control instruction of confirming dispatching cycle and preserving on the said dispatched users at NodeB.

2. method according to claim 1 is characterized in that, said NodeB sends to dispatched users with power control instruction of confirming dispatching cycle and preserving on the dispatched users and comprises:

If the subframe numbers of first HS-SCCH subframe of current dispatching cycle is greater than the subframe numbers of a last dispatching cycle of last HS-SICH subframe, then last uplink power control of the last dispatching cycle generation that will preserve of NodeB is instructed and is sent to dispatched users;

If the subframe numbers of first HS-SCCH subframe of current dispatching cycle is not more than the subframe numbers of last HS-SICH subframe of a dispatching cycle, then NodeB is with the D before first HS-SCCH subframe of current dispatching cycle _ULThe instruction of uplink power control that sub-frame produced is carried in first HS-SCCH subframe of current dispatching cycle and sends to dispatched users; From second HS-SCCH subframe of current dispatching cycle begin, to the HS-SCCH subframe of not determining all current dispatching cycle before the power control instruction according to said dispatched users first HS-SICH subframe signal current dispatching cycle; For arbitrary subframe numbers is the subframe of SFN, if subframe numbers satisfies (SFN-D _UL)＞SFN_SICH_last, then NodeB is that the subframe of SFN is handed down to dispatched users with the uplink power control instruction of preserving through said subframe numbers, if subframe numbers satisfies (SFN-D _UL)＜=SFN_SICH_last, then NodeB is SFN-D with subframe numbers _ULThe uplink power control instruction that produces of subframe be carried in the subframe that subframe numbers is SFN and send to dispatched users; Said SFN_SICH_last representes the subframe numbers of dispatched users in last HS-SICH subframe of current dispatching cycle.

3. method according to claim 1; It is characterized in that; At said NodeB after the power control instruction of a dispatching cycle sends to dispatched users successively on said dispatched users; Said NodeB is not before first HS-SICH subframe signal is determined power control instruction in current dispatching cycle according to said dispatched users, and this method further comprises: NodeB alternately will indicate the power control instruction that improves and reduce the HS-SICH transmitted power to send to dispatched users.

4. method according to claim 1; It is characterized in that; This method further comprises: if current dispatching cycle be first dispatching cycle or current dispatching cycle and on it scheduling interval between dispatching cycle be not less than preset GAP value; Then to current dispatching cycle: before first HS-SICH subframe signal was not determined power control instruction in current dispatching cycle according to said dispatched users, NodeB carried preset reactance capacity control command in the HS-SCCH subframe that at every turn issues at NodeB.

5. method according to claim 4 is characterized in that, said reactance capacity control command is for alternately indicating the power control instruction that improves and reduce the HS-SICH transmitted power.

6. method according to claim 1; It is characterized in that; For current dispatching cycle, from NodeB according to said dispatched users first HS-SICH subframe signal current dispatching cycle determine power control instruction, to last HS-SCCH subframe of current dispatching cycle, NodeB utilizes close-loop power controlling method; HS-SICH signal according to receiving is confirmed power control instruction, and is handed down to dispatched users through the HS-SCCH subframe.

7. method according to claim 6; It is characterized in that; If current dispatching cycle be first dispatching cycle or current dispatching cycle and on it scheduling interval between dispatching cycle be not less than preset GAP value; Then begin to receive the HS-SICH signal of dispatched users last HS-SCCH subframe from NodeB to current dispatching cycle in current dispatching cycle; First HS-SICH signal that NodeB receives with current dispatching cycle is the basis, carries out the said operation that utilizes close-loop power controlling method, confirms power control instruction;

If the scheduling interval between current dispatching cycle and dispatching cycle on it is less than the GAP value of presetting; Then current dispatching cycle begins to receive the HS-SICH signal of dispatched users last HS-SCCH subframe to current dispatching cycle from NodeB; The HS-SICH signal that receive a dispatching cycle more than the NodeB is carried out the said operation that utilizes close-loop power controlling method, confirms power control instruction for the basis.

8. method according to claim 1; It is characterized in that; When being separated by at least one subframe between last HS-SICH subframe of said current dispatching cycle and first HS-SCCH subframe of next dispatching cycle, on said subframe of being separated by, do not carry out the power control operation for said dispatched users.

9. method according to claim 1 is characterized in that, when preserving power control instruction, the power back-off that this power control instruction is corresponding is set to 0.

10. the ascending power control method of a HS-SICH channel is used for the transmitted power that dispatched users is confirmed self HS-SICH, it is characterized in that this method comprises:

If current dispatching cycle be first dispatching cycle or current dispatching cycle and on it scheduling interval between dispatching cycle be not less than preset GAP value; Then in current dispatching cycle; Dispatched users do not extract NodeB in the current dispatching cycle utilize close-loop power controlling method confirm and the power control instruction that issues before, dispatched users utilizes open-loop power control method to confirm the transmitted power of each HS-SICH subframe;

If the scheduling interval between current dispatching cycle and dispatching cycle on it is less than the GAP value of presetting; Then in the current dispatching cycle; Dispatched users do not extract NodeB in the current dispatching cycle utilize close-loop power controlling method confirm and the power control instruction that issues before; Dispatched users above one dispatching cycle the HS-SICH subframe transmitted power be basic; According to the HS-SCCH of current dispatching cycle carry last one dispatching cycle NodeB power control instruction, carry out the transmitted power adjustment of HS-SICH.

11. method according to claim 10 is characterized in that, this method further comprises:

To current dispatching cycle; Till said dispatched users begins to receive power control instruction that NodeB utilizes close-loop power controlling method and confirm and issue, extracts subframe forward last HS-SICH subframe of last HS-SCCH subframe is carried in the current dispatching cycle power control instruction and current dispatching cycle to dispatched users; Dispatched users is carried out the transmitted power adjustment of HS-SICH according to the power control instruction that NodeB utilizes close-loop power controlling method to confirm and issue.

12. method according to claim 11 is characterized in that, when dispatched users is extracted the shared number of sub frames of power control instruction less than the corresponding number of sub frames of the timing difference between HS-SICH and HS-SCCH,

If the subframe numbers of last HS_SICH subframe of current dispatching cycle is less than or equal to the subframe numbers of the power control instruction that first HS_SCCH subframe is carried in next dispatching cycle that dispatched users extracts current dispatching cycle; Perhaps; If the subframe numbers of last HS_SICH subframe of current dispatching cycle extracts subframe numbers and current dispatching cycle and the scheduling interval between next dispatching cycle of the power control instruction that first HS_SCCH subframe is carried in next dispatching cycle of current dispatching cycle and is not less than preset GAP value greater than dispatched users; Then from dispatched users extract last HS-SCCH subframe is carried in the current dispatching cycle power control instruction, till last HS-SICH subframe of current dispatching cycle, dispatched users is with the determined transmitted power of power control instruction of carrying according to last HS-SCCH subframe in the current dispatching cycle transmitted power as HS-SICH;

When dispatched users is extracted the shared number of sub frames of power control instruction less than the corresponding number of sub frames of the timing difference between HS-SICH and HS-SCCH,

If the subframe numbers of last HS_SICH subframe of current dispatching cycle extracts subframe numbers and current dispatching cycle and the scheduling interval between next dispatching cycle of the power control instruction that first HS_SCCH subframe is carried in next dispatching cycle of current dispatching cycle less than preset GAP value greater than dispatched users; Then from dispatched users extract last HS-SCCH subframe is carried in the current dispatching cycle power control instruction, till the previous subframe that is extracted out to first power control instruction of said next dispatching cycle, dispatched users is with the determined transmitted power of power control instruction of carrying according to last HS-SCCH subframe in the current dispatching cycle transmitted power as HS-SICH.

13., it is characterized in that dispatched users is according to power control instruction according to arbitrary described method in the claim 10 to 12, the transmitted power of carrying out HS-SICH is adjusted into:

When the power control instruction that receives is when improving transmitted power, with preset step-length of transmitted power raising of HS-SICH; When the power control instruction that receives is when reducing transmitted power, with preset step-length of transmitted power reduction of HS-SICH.

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